Weighted, Foldable, Pleated Tablecloth Apparatus and Method

ABSTRACT

A cover such as a tablecloth is provided with a system of weights proximate the perimeter thereof in order to resist the dislodgement of the tablecloth from the table by the presence of wind. Containment for the weights is selected to have a length and diameter suitable for installation with a periodicity providing periodic gaps. The gaps assist in folding the cover for storage, as well as providing natural breakpoints for pleating, so it will drape more naturally from the edges of corners of the supporting equipment or table covered by it.

BACKGROUND

1. The Field of the Invention

This invention relates to tablecloths and mechanisms for securing tablecloths in outdoor environments exposed to wind.

2. The Background Art

Covers for equipment take on many forms. A good example is a tablecloth used in outdoor environments such as camping, picnicking, parties, entertainment, and the like. Outdoor environments are frequently exposed to some degree of breeze or wind. It is not uncommon for wind to not only put the table cover in disarray but may actually flip it over, spilling and otherwise adversely affecting the contents held by the table. For example, drinks may be tipped over with a comparatively modest force as a tablecloth is caught up by winds and pushed across a table.

It would be an advance in the art to develop a system and method to secure tablecloths against the affects of breezes and wind while still providing decorative themes desired and a ready susceptibility to be easily folded up and stored.

BRIEF SUMMARY OF THE INVENTION

In accordance with the foregoing, an apparatus and method in accordance with the invention provide a system of weighting having periodic gaps to provide the aesthetic appeal and proper functioning of folds and pleats that naturally should occur in the manner of draping a cover, such as a tablecloth, over an item of equipment, such as a supporting table. Hereinafter, whenever the term “tablecloth” is used, it is used both to recite a tablecloth specifically, and as an example of any general cover for equipment maintained outdoors.

For example, indoors, a fabric or plastic dust cover or protective cover may be draped over an article of equipment. In one example, a cloth table covering will drape down over the edge of a table. In accordance with the invention, a system of weights provides periodic gaps in the weighting in order to support pleating of the cover as it drapes from the edge, and particularly the corners, of a covered table.

Meanwhile, the weighting system is also provided with periodic gaps suitable for folding. Stretching of materials, bursting of containers, distortion of the weights, containment systems, or the cover itself (e.g., tablecloth) is not required in order to conveniently fold up the tablecloth for storage. Hereinafter, the tablecloth illustrated represents one embodiment of a cover, used by way of a specific embodiment, and as an example generally. However, in general, protective covers in accordance with the invention may be formed as a flat sheet to drape over equipment, or may be sewn to be shaped more like the actual perimeter of equipment covered.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing features of the present invention will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. Understanding that these drawings depict only typical embodiments of the invention and are, therefore, not to be considered limiting of its scope, the invention will be described with additional specificity and detail through use of the accompanying drawings in which:

FIG. 1 is a perspective view of one embodiment of an apparatus in accordance with the invention, illustrating the placement of a weighting system distributed about a perimeter of a cover, such as a tablecloth, with weights separated by gaps;

FIG. 2 is a top plan view of the apparatus of FIG. 1;

FIG. 3 is a left side elevation view of the apparatus of FIGS. 1-2;

FIG. 4 is a right side elevation view of the apparatus of FIGS. 1-3;

FIG. 5 is a bottom plan view of the apparatus of FIGS. 1-4;

FIG. 6 is a front elevation view of the apparatus of FIGS. 1-5;

FIG. 7 is a rear elevation view of the apparatus of FIGS. 1-6;

FIG. 8 is a top plan view of an alternative embodiment of the apparatus of FIG. 1, made of a single sheet of material, with an example of a single decorative pattern, but without portions sewn together near the edge;

FIG. 9 is a top plan view of an alternative embodiment of the apparatus of FIG. 1, made of a single sheet of material, without patterns and without portions sewn together near the edge;

FIG. 10 is a perspective view of an alternative embodiment of an apparatus in accordance with the invention;

FIG. 11 is a top plan view of the apparatus of FIG. 10;

FIG. 12 is a left side elevation view of the apparatus of FIG. 10;

FIG. 13 is a right side elevation view of the apparatus of FIG. 10;

FIG. 14 is a bottom plan view of the apparatus of FIG. 10;

FIG. 15 is a front elevation view of the apparatus of FIG. 10;

FIG. 16 is a rear elevation view of the apparatus of FIG. 10;

FIG. 17 is a top plan view of an alternative embodiment of the apparatus of FIG. 10, made of a single sheet of material, with an example of a single decorative pattern thereon, but without portions sewn together near the edge;

FIG. 18 is a top plan view of an alternative embodiment of the apparatus of FIG. 10, made of a single sheet of material, without patterns and without portions sewn together near the edge;

FIG. 19 is a perspective view of another alternative embodiment of an apparatus in accordance with the invention, having rounded corners;

FIG. 20 is a top plan view of the apparatus of FIG. 19;

FIG. 21 is a left side elevation view of the apparatus of FIG. 19;

FIG. 22 is a right side elevation view of the apparatus of FIG. 19;

FIG. 23 is a bottom plan view of the apparatus of FIG. 19;

FIG. 24 is a front elevation view of the apparatus of FIG. 19;

FIG. 25 is a rear elevation view of the apparatus of FIG. 19;

FIG. 26 is a top plan view of an alternative embodiment of the apparatus of FIG. 1 in accordance with the invention;

FIG. 27 is a bottom plan view of the apparatus of FIG. 26, where the elevation views thereof will appear the same as those corresponding the apparatus of FIG. 1;

FIG. 28 is a top plan view of an alternative embodiment of a cover of FIG. 19, in accordance with the invention, wherein the elevation views thereof would appear as those described with respect to FIG. 1;

FIG. 29 is a bottom plan view of the table covering of FIG. 28;

FIG. 30 is a top plan view of an alternative embodiment of a tablecloth in accordance with the invention, having a circular configuration;

FIG. 31 is the front and rear elevation view of the apparatus of FIG. 30;

FIG. 32 is the side elevation view of the apparatus of FIG. 30, wherein it should be noted that all elevation views for the circular configuration of FIG. 30 may look substantially the same;

FIG. 33 is a bottom plan view of the cover apparatus of FIG. 30;

FIG. 34 is a top plan view of an alternative embodiment of the apparatus of FIG. 30, in which a single sheet with a single pattern is used instead of several pieces sewn together, a center aperture is provided for receiving an umbrella pole, and a zipper along a radius of the cover apparatus permits opening the cover to fit around such a pole.

FIG. 35 is a top plan view of an alternative embodiment of the cover apparatus of FIG. 34, having a single sheet of material and no pattern, illustrating also that the various features of the apparatus may be included or excluded in any particular embodiment.

FIG. 36 is a perspective view of a sectioned portion of a weighting system disposed along or proximate an edge of a tablecloth in accordance with the invention;

FIG. 37 is a perspective view of a portion of a weighted edge of a cover apparatus in accordance with the invention, illustrating the gap portions where no weight is disposed within the hem; and

FIG. 38 is a perspective view of one embodiment of a sealed weight bag suitable for inclusion within a hem at or proximate the edge of a tablecloth in accordance with the invention; the bag being filled with a weighting material such as shot, sand, pellets, liquid, or the like.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

It will be readily understood that the components of the present invention, as generally described and illustrated in the drawings herein, could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of the embodiments of the system and method of the present invention, as represented in the drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of various embodiments of the invention. The illustrated embodiments of the invention will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout.

Referring to FIG. 1, while referring generally to FIGS. 1-32, a cover apparatus 10 (e.g., tablecloth 10, furniture cover 10, barbecue cover 10, machinery cover 10, or the like) may be formed to have a cover portion 12 surrounded by a hem portion 14. The hem portion 14 is sometimes referred to simply as the hem 14. In general, the hem portion 14 or hem 14 is created by the hem stitch 16 securing a loop portion 14 of the material back to itself at the edge of the cover portion 12. Hereinafter, the term “tablecloth 10” is used by way of both a specific example and as a general representation for all the types of covers that may benefit from the invention.

In certain designs in accordance with the invention, a trim portion 18 may be added. The cover portion 12 may have no pattern at all, may have any color at all, may include a particular selection of a pattern, or the like. Meanwhile, the trim portion 18 may likewise have a pattern, no pattern, a color or no color, and may or may not have the selected pattern or no pattern of the cover portion 12. Thus, in general, various artistic or graphic elements may be added to the cover portion 12, the trim portion 18, to both, or to neither.

Meanwhile, the color selection for the cover portion 12, and the trim portion 18 may be selected to be complementary, analogous, monochromatic, identical, contrasting, or the like. Thus, in general, the color portion 12 may be a solid color including white or black, while the trim portion 18 may be a solid color including white or black, and either the cover portion 12 or the trim portion 18 may be patterned to have any particular graphic design desired. For example, stars, flowers, gingham, calico, checkered, plaid, or the like may be selected in any color scheme to be a pattern imposed on the cover portion 12, the trim portion 18, both thereof, or neither thereof.

Within the trim portion 18, and particularly within the hem 14, weighting materials may be captured, such as by being sewn in. Typically, the weighted materials may be granular, pelletized, or solid. In certain embodiments, the weighting materials may actually be liquids, slurries, or the like. The weighting materials may be sealed within containment suitable to resist puncture, resist bursting, and otherwise tolerate the vagaries of abuse, wear, weather, and other circumstances. The weighting materials may be installed within the hem 14 to create certain gaps 20 or flat portions 20 between filled portions 22. By providing the gaps 20 along the perimeter of the trim portion 18, the tablecloth 10 may be created to present folds 24. The folds may appear to occur naturally at the gaps 20 where no fill materials are located. In the gap regions, in certain embodiments, it is possible to simply provide for either no fill material, or very sparse amounts of fill material in order to accommodate folding, bending, pleating, or the like.

For example, when a tablecloth 10 is draped over a table, an object 10 that was formed to be entirely flat now must drape down of an edge of the table where it now contains excess sheet material. With cloth, one is accustomed to the natural draping of a tablecloth, naturally pleating at the corners in response to the excess material at the corners.

By suitable selection of the length of the gaps 20 and the filled portion 22 along the perimeter of the hem 14, one may promote one or several locations of pleating at the gaps 20. Accordingly, the tablecloth 10 will drape in folds 24, and pleats 26 therebetween. Likewise, each of the gaps, provides a location at which the tablecloth 10 may fold or be folded easily. Since the hem 14 at a gap 20 may be a mere two layers thick, the front portion and the back portion of the hem 14, the tablecloth may be folded at those locations.

The gaps 20 and filled portions 22 may be sized and combined to provide suitable numbers of folds 24 and pleats 26 to provide an aesthetically pleasing appearance. For example, in certain embodiments, the filled portions 22 may extend only a comparatively short length, for example, about three inches each. Meanwhile, in other embodiments, the filled portion 22 may extend 6 inches, 1 foot, or the like. Typically, distances greater than 1 foot for the lengths of the filled portions 22 may be problematic in providing for suitable, simple, straightforward folding and storage.

In some embodiments, the cover portion 12 and the trim portion 18 may be separated only by the patterns printed thereon. In other embodiments different materials preprinted with unique patterns may be used for the cover portion 12 and the trim portion 18. For example, in the illustrated embodiment, seams 28 may be used to secure the cover portion within the trim portion 18. Likewise, to manufacture the trim portion 18 from lengths of a material, the seams 28 may also be used to form diagonals, gussets, or the like at corners and other locations, in order to accommodate the optimal use of materials without unnecessary waste.

For example, it makes more economic sense to form the trim portion 18 from a strip of material than it does to cut it from a large, single piece. On the other hand, in certain embodiments, a cover portion 12 may be made of one material, while the central or cover portion 12 of another tablecloth 10 is cut out from its trim portion 18. Thus the waste from each trim portion 18 could be used as a cover portion 12 on another tablecloth. Nevertheless, in the illustrated embodiment, the seams 28 extend along the diagonals and corners in order to join the strips forming the trim portion 18.

Referring to FIGS. 1-21, one may see that a tablecloth 10 may include a cover portion 12 that may extend all the way to the hem 14. Alternatively, as illustrated, the hem portion 14 may actually be at the edge of a trim portion 18 secured by seams 28 to the cover portion 12, that portion 12 central to the tablecloth 10 and located on the top of the table.

In certain embodiments, the trim portion 18 may extend onto the top of the table. Nevertheless, in the illustrated embodiment, cleaning off the cover portion 12 may be easier if it is formed as a single, smooth sheet. Maintenance and use may be better served by forming the trim portion 18 only in that part of the tablecloth 10 that will drape below the edge of the table covered.

In general, the hem 14 or hem portion 14 may be formed by a hem stitch 16 to create various pockets 22 or filled portions 22, separated by gaps 20 or flat portions 20 therebetween about the perimeter. The gaps 20 or flat portions 20 provide for folds 24. The folds 24 are suitable for folding the tablecloth 10 for storage or to allow the tablecloth 10 to drape appropriately in a system of folds 24 and pleats 26 resulting from the excess perimeter length.

Referring to FIGS. 8-14, while continuing to refer generally to FIGS. 1-32, the aspect ratio of length to width of the tablecloth 10 may be determined according to a table to be covered. For example, picnic tables, banquet tables, and the like have an aspect ratio of length to width greater than unity. On the other hand, circular tables, square tables such as card tables, and the like may have an aspect ratio of one when comparing length to width.

Referring to FIGS. 15-21, while continuing to refer generally to FIGS. 1-32, a circular corner or a radiused corner may be added to any particular table cloth 10 in order to provide simpler manufacturing, aesthetic appeal, or the like. For example, in the absence of corners, certain additional requirements are added, but certain requirements are eliminated. For example, the hem stitch 16 may run continuously, rather than terminating at a corner joint. Meanwhile, such an embodiment may provide a more even length near the corners of a table.

Referring to FIGS. 22-23, a tablecloth 10 in accordance with the invention may include an intermediate strip 30. The intermediate strip may be designed to display a solid color, including black or white, or may be provided with another pattern. For example, in certain embodiments, the cover portion 12 may be patterned after a calico or other pattern, while the trim portion 18 is in a distinct and different pattern, for example, a gingham pattern. Meanwhile, intermediate portion 30 or the strip 30 may be of a suitable pattern and color, such as, for example, a solid color providing an interface 30 between the cover portion 12 and the trim portion 18.

Referring to FIGS. 24-25 in particular, and all Figures generally, a substantially rectangular or square embodiment of a tablecloth 10 in accordance with the invention may include either sharp or rounded corners and may or may not include intermediate strip 30 between the cover portion 12 and the trim portion 18.

Referring to FIGS. 26-29 in particular, and all Figures generally, in certain embodiments of an apparatus 10 in accordance with the invention, a tablecloth 10 may be designed in a circular pattern. The seams 28 may be used to match the trim portion 18 in a shape to surround the cover portion 12. Meanwhile, an optional intermediate strip 30 may be included therebetween.

As can be seen, a circular configuration may include periodic gap portions 20 between the filled portions 22 in order to provide an aesthetically pleasing system of folds 24 and pleats 26. In a circular embodiment, shorter lengths for the filled portions 22 may be appropriate in order to provide a more aesthetic appearance for a circular tablecloth 10.

For example, in rectangular tablecloths 10, the tablecloth drapes along each edge as a single sheet. By contrast, near each corner, the tablecloth must drape in a combination of folds 24 and pleats 26 to accommodate the mismatch in length between the table corner and the portion of the tablecloth 10 near its own corner.

By comparison, a circular tablecloth virtually always has a diameter mismatch, leaving too much material relative to the perimeter of the table. Accordingly, a continuous system of folds 24 and pleats 26 will typically occur with a cloth tablecloth over a table. Similarly, the lengths of the filled portions 22 may be formed to be of a comparatively shorter length, typically between one and six inches such as, for example, about 3 inches. These shorter filled portions 22 promote a more continuous, distributed, aesthetic system of folds 24 and pleats 26 of a circular tablecloth when in use.

Referring to FIGS. 30-32 in particular, and all Figures generally, a filled portion 22 of the hem 14 of a tablecloth 10 may have a diameter 32 of from about ¼ inch to about 1 inch. Typically, a diameter 32 of about ½ inch to ¾ inch provides a suitable weight and size. Typically, the length 34 of the filled portion 22 may be selected as described above in order to accommodate a system of folds 24 and pleats 26 aesthetically pleasing under the circumstances.

Likewise, the length 36 of the flat portion 20 or gap 20 may be suitably sized. In one embodiment, the length 36 may be at least a whole diameter 32 in order to accommodate each half of a diameter of adjacent filled portions 22. In other embodiments, the length 36 may be at least up to 2 diameters 32 of the filled portion 22 thus, when folded for storage, the tablecloth may have sufficient slack along the length 36 to accommodate an easily folded pair of filled portions 22 adjacent to one another.

In certain embodiments, the fill material may be selected from synthetic or natural materials. For example, small gravel such as is used in aquariums is a suitable fill material and competitive in cost. Likewise, sand serves well as a suitable fill material 38. In other embodiments, pellets, granules, shot, and the like may be used. Steel, lead, plastic, and the like may all be suitable fill materials 38. In certain embodiments, the additional weight of steel or lead shot may be easily distributed down to a single piece at a time—shot may also provide a smaller diameter 32 for comparable weight. Thus, in general, a fill material 38 selected may be of any suitable configuration including liquids, solids, and particularly any granular solid.

On the other hand, the use of sand as a natural fill material 38 may provide trade offs. Sand may require a larger diameter 32 for comparable weight. However, sand is easily obtained, easily installed, is cost effective, and may be easily disposed of when a tablecloth 10 is worn out. Similarly, other natural materials such as gravel may likewise serve.

Typically, stitching 40 may be formed in any manner. The illustrated hem stitch 16 in FIG. 30 is a zig-zag stitch. In other embodiments, and as illustrated elsewhere, the hem stitch 16 may be a straight stitch or otherwise. Also, the stitching 40 may be heat sealed, glued, or sewn with thread. Nevertheless, the stitching 40 may be the same as the style and material of the hem stitch 16, or different therefrom. Regardless, the stitching 40 may typically be formed as a single stitch between adjacent filled portions 22, or as two corresponding stitchings 40 established in a length 36 of the gap portion 20.

Referring to FIG. 31, the material of the tablecloth 10 may be selected to be of a polymer, such as plastics and the like, a natural material, or the like. Thus, the material of the tablecloth 10 may need no reinforcement 42. In other embodiments, oil cloth is a suitable material. Oil cloth may be formed to have a main plastic sheet backed by some reinforcement 42, such as an included fiber or a cloth bonded thereto.

Referring to FIG. 32, in one embodiment, the filled portion 22 may be filled by a bag 50 containing a fill material 38. The bag 50 may be formed of any suitable material. For example, if the fill material 38 is a granular or a pelletized material, the bag 50 may be formed of fabric, woven, or nonwoven, or the like, including natural, porous materials. In other embodiments, the bag 50 may be formed of a flexible or stiff, solid plastic film, sheet, or tube, in order to seal the bag 50.

The seal 52 may be formed in any suitable manner. For example, a fastener, a fold, a grip, glue, and the like may be considered as a seal 52. In other embodiments, heat may seal a bag 50 formed of a polymer film. The bags 50 may typically be of a single length 54. In another embodiment, within a single tablecloth 10, the bags 50 may be formed at separate and distinct lengths 54 in order to accommodate, for example, longer expanses of long edges of the table, with shorter systems of folds 24, and pleats 26 near corners. In other embodiments, the lengths 54 may all be the same within a tablecloth. Accordingly, the design and manufacturing may be balanced according to what is most advantageous and aesthetic.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative, and not restrictive. The scope of the invention is, therefore, indicated by the appended claims, rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope. 

1. a method comprising: providing an equipment supported above a surface, and having a top spaced vertically above the surface; providing the equipment having a top comprising an outer perimeter; providing a sheet comprising a cover portion, extending laterally in intimate contact with the top, and a trim portion, extending substantially vertically from the top and terminating at a sheet edge defining a perimeter of the sheet; providing weights integrated with the trim portion proximate the sheet edge and distributed therealong; providing a flat portion of the trim portion between each pair of adjacent weights; placing the cover portion on the top; draping the trim portion over the edge of the outer perimeter; and pleating by the trim portion folding at the flat portions and extending substantially unfolded along the weights.
 2. The method of claim 1, wherein the equipment is a table, the method further comprising: unfolding the sheet at the flat portions; extending the sheet to cover at least a portion on the top of the table; draping the trim portion over the table edge; removing the sheet from the table; and folding the sheet at the flat portions.
 3. The method of claim 1, wherein the weights are sized and shaped in a configuration selected from solid, pelletized, granular, and liquid.
 4. The method of claim 1, wherein the weights are sized to be substantially identical to one another.
 5. The method of claim 1, wherein: the sheet comprises corners; the weights are sized in at least two lengths comprising a first length, comparatively shorter and corresponding to the corners; and a second length, comparatively longer and corresponding to the trim portion at points located away from the corners.
 6. The method of claim 5, wherein the first length is selected to promote pleating of the sheet corresponding thereto and folding of the sheet at the flat portions adjacent thereto.
 7. The method of claim 1, wherein the sheet further comprises a hem containing the weights substantially evenly distributed about the entire perimeter thereof.
 8. The method of claim 1, wherein the weights comprise a fill material contained within a liner sealed against escape of the fill material.
 9. The method of claim 8, wherein: each weight comprises a segment of the liner substantially completely filled with the fill material; adjacent weights are separated the flat portion therebetween containing no fill material; and the flat portion has substantially reduced section modulus and stiffness with respect to the segment filled with the fill material.
 10. The method of claim 9, wherein the flat portions and the segments are sized relative to one another to support formation of pleats corresponding to the filled segments and folds corresponding to the flat portions in response to suspension of the trim portion proximate a non-linear portion of a table.
 11. The method of claim 1, wherein the equipment is a table having an edge comprising a non-linear portion selected from a substantially square corner, a substantially polygonal corner, a radiused corner, and a circumference.
 12. The method of claim 1, wherein the sheet is comprised of a material selected from woven fabric, non-woven fabric, solid film, reinforced polymer sheet, oilcloth, fiber-backed polymer sheeting, and polymer-impregnated fabric.
 13. The method of claim 1, wherein the sheet comprises a material selected to be substantially impervious to water and air.
 14. A method comprising: providing a table comprising a top supported above a supporting surface and having at least one leg extending to space the top vertically above the supporting surface; providing the table having a top, substantially planar and comprising a table edge bounding the top in a lateral direction; providing a sheet extending laterally in intimate contact with the top, and comprising a trim portion, extending substantially vertically from the top and terminating at a sheet edge defining a perimeter of the sheet; providing weights integrated with the trim portion proximate the sheet edge and distributed therealong; providing a flat portion of the trim portion between each pair of adjacent weights placing the sheet on the top of the table; draping the trim portion over the table edge; pleating by the trim portion folding at the flat portions and extending substantially unfolded along the weights.
 15. The method of claim 14, wherein the weights are sized and shaped in a configuration selected from solid, pelletized, granular, and liquid.
 16. The method of claim 15, wherein: the sheet comprises corners; the weights are sized in at least two lengths comprising a first length, comparatively shorter and corresponding to the corners; and a second length, comparatively longer and corresponding to the trim portion at points located away from the corners.
 17. The method of claim 16, wherein the first length is selected to promote pleating of the sheet corresponding thereto and folding of the sheet at the flat portions adjacent thereto.
 18. The method of claim 15, further comprising: unfolding the sheet at the flat portions; extending the sheet to cover a portion of the top of the table; draping the trim portion over the table edge; removing the sheet from the table; folding the sheet at the flat portions; and storing the sheet in a folded configuration.
 19. The method of claim 18, wherein: the sheet further comprises a hem containing the weights substantially evenly distributed about the entire perimeter thereof; the weights comprise a fill material contained within a liner sealed against escape of the fill material; each weight comprises a segment of the liner substantially completely filled with the fill material; adjacent weights are separated by the flat portion therebetween containing no fill material and having substantially reduced section modulus and stiffness with respect to the segment filled with the fill material; the flat portions and the segments are sized relative to one another to support formation of pleats corresponding to the filled segments and folds corresponding to the flat portions in response to suspension of the trim portion proximate a non-linear portion of a table; the sheet is comprised of a material selected from woven fabric, non-woven fabric, solid film, reinforced polymer sheet, oilcloth, fiber-backed polymer sheeting, and polymer-impregnated fabric selected to be substantially impervious to water and air.
 20. An apparatus comprising: a table comprising a top supported above a supporting surface; the table, having at least one leg extending to space the top vertically above a surface therebelow; the table, having a top comprising a plane and a table edge bounding the top in a lateral direction; a sheet comprising a cover portion, extending laterally in intimate contact with the top, and a trim portion, extending substantially vertically from the top and terminating at a sheet edge defining a perimeter of the sheet; weights integrated with the trim portion proximate the sheet edge and distributed therealong; the sheet, wherein the trim portion further comprises a flat portion between each pair of adjacent weights, and the trim portion folds at the flat portions while extending substantially unfolded along the weights. 